Vacuum cleaner



Patented July 17, 1923.

therewith;

ALONZO ABNER WARNER, OF NEW BRITAIN, CONNECTICUT AS SIGNOR T0 LANDEBS,

FRARY 8a CLARK, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CON- NECTICUT.

VACUUM CLEANER.

Application filed October 20, 1920. Serial l to. 418,249.

To all wlwin it may concern: I

Be it known that I, ALoNzo A. WARNER,

a citizen of the United States, residing at New Britain, county of Hartford, State of Connecticut, have invented a certain new and useful Improvement in Vacuum Cleaners, of which the following is a full, clear,

and exact description.

My invention relates to vacuum cleaners and has for its object to provide a newand improved coupling for securing accessories such as the nozzle, bag, hose, etc., to ,the vacuum cleaner casing.

Fig. 2 is a front elevation of the same;

-Fig. 3 is a detail of the ring on one of the fixed coupling members;

Fig. 4 is aside elevation of a nozzle having a removable coupling member integral Fig. 5 is a section on the line 55,'Fig. 4;

Fig. 6 shows another portion of one of the fixed coupling members;

Fig. 7 shows a detail of the bag the removable coupling member;

Fig. 8 shows a detail of a hose with the removable coupling member; and,

Fig. 9 shows the fixed coupling member of the machine to which the bag is normally connected.

Referring more particularly. to the drawings, 1 is the casing for the electric motor. 2 is the casing for the fan chamber, which with is provided with a fixed coupling. member 11 at its center and a similar coupling mem ber 11 at its exhaustport. These members each consist of a tubular portion 3, Fig. '6, constituting a coupling member and having in its edges recesses4, 4 and laterally projecting screw-studs .5, 5. These screw-- studs lie in slots 6, 6 in a ring 7, having segmental flanges 8, 8 and spaces 9, 9 between the segmental flanges corresponding substantially to the recesses 4, 4 in length.

.The slots 6, 6 are slightly inclined in the same direction as one another. The studs 5, 5 passing through those slots hold the ring in place and as'thering is turned the flanges 8, 8 move slightly away from the end surface of the tubular member-3 or are drawn down into contact therewith. 10 is the discharge tube of the fan casing and is provided with a coupling 11' which is similar to the coupling just described. The nozzle 12, bag 13 and hose 14 are all provided with coupling members adapted to cooperate with either of the fixed coupling members 11 and 11' carried by the fancasing. These removable coupling members each'consist of axis of the coupling member 3. In aflixing anyv one of these members to either fixed coupling, the portion 15 is inserted in the tubular projection 3 so that the projections 16 lie in the recesses 4 and the ring 7 is thereupon turned so as to bring the recesses 9 out of alinement with the recesses 4 and projections 16, and thus clamp the removlace.

carried by the casing 2.

ablemember in The wheels 1 normally engage the floor and support the casing in a definite position relative to the floor. The nozzle when coupled to the easing as described has its laterally extending mouth adjacent to and parallel with said floor, its position being determined by the engagement of the projections 16 thereon with the recesses 4 in the coupling member.

One particular advantage of this construction is that a hose can be ailixed to the opening ,to which the nozzle is normally con-' nected, so that with this arrangement it is necessary to have but one opening on the face of the machine for any purpose. Furthermore, the bag-can be removed from its fixed coupling and the hose connected thereon so that a blast of air can be secured 1n that simple manner. Furthermore, the couplings themselves form very satisfactory positive means for removably connecting" the accessories above referred to.

As will be evident to those skilled in the art, my invention permits of various modifications withoutdeparting from the spirit thereof or the scope of the appended claims.

What I claim is: t 1. In a vacuum cleaner comprising a casing and a removable nozzle, a tubular member rejecting from the casing and provide with a recess extending radially through its wall and with radial studs, a tubular portion extending from said nozzle and entering said tubular portion upon the casing, said nozzle portion having a shoulder-forming projectionextending radially in alinement with said recess.

2. In a vacuum cleaner comprising a casing and a removable nozzle, a tubular member projecting from the casing and-provided with recesses extending radially through its wall and with radial studs, a tubular portion extending from said nozzle and entering said tubular portion upon the casing, said nozzle portion having shoulder-forming projections extending radially therefrom and integral therewith and fitting within saidrecesses, and a locking ring surrounding said casing portion and having elongated slots in its periphery surrounding said studs and an interrupted flange overlapping the end of said casing tubular portion and, when said ring is in looking position, engaging the to hold them within said recesses said flange having spaces permitting said projections to be inserted into and removed from said recesses when said space is in alinement with said recesses.

3. In a vacuum cleaner comprising a casing and a removable nozzle, a tubular member projecting from the casing and provided with a recess-extending radially through its wall and with radial studs, a tubular portion extending from said, nozzle and entering said tubular portion upon-the casing, said nozzle portion having a shoulder-forming projection extending radially therefrom and integral therewith and fitting within said recess, and a locking ring surrounding said casing portion and having elongated slots in its periphery surrounding said studs and an interrupted flange overlapping the end of said casing tubular portion and, when said ring is in looking position, engaging the shoulder upon said radial pro'ection so as to hold it within said recess sai flange having shoulders upon said radial proJections so as a space permitting said projection to be inserted into and removed from said recess when said space is in alinement with said recess, sald slots being slightly inclined in the same direction as each other.

ALONZO ABNER WARNER. 

